Title:
PARTIAL RING PET APPARATUS AND PET APPARATUS
Document Type and Number:
Japanese Patent JP2018136152
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To reduce an artifact of a PET image by suppressing deterioration of image quality due to absence of a coincidence counting radiation detector in a partial ring PET apparatus by providing a single gamma ray radiation detector to reduce a loss of a projection angle.SOLUTION: The partial ring PET apparatus has a missing portion (16) in a coincidence counting radiation detector (14) to be arranged in a ring shape surrounding a visual field area (10) for detecting a coincidence line (12) of annihilation radiation. Deterioration of image quality due to the absence of the coincidence counting radiation detector (14) is compensated by providing a single gamma ray radiation detector (collimator-type detector 32, Compton camera 40) for detecting at least one (30) of the annihilation radiation as a single gamma ray.SELECTED DRAWING: Figure 3
Inventors:
YAMAYA TAIGA
TAJIMA HIDEAKI
TAJIMA HIDEAKI
Application Number:
JP2017029405A
Publication Date:
August 30, 2018
Filing Date:
February 20, 2017
Export Citation:
Assignee:
NATIONAL INSTITUTES FOR QUANTUM & RADIOLOGICAL SCIENCE & TECH
International Classes:
G01T1/161; A61B5/055; G01T7/00
Domestic Patent References:
| JP2000028732A | 2000-01-28 | |||
| JP2012514745A | 2012-06-28 |
Foreign References:
| WO2012077468A1 | 2012-06-14 |
Attorney, Agent or Firm:
Satoshi Takaya
Keisuke Matsuyama
Tsuyoshi Makino
Takashi Fujita
Shuzo Sudo
Keisuke Matsuyama
Tsuyoshi Makino
Takashi Fujita
Shuzo Sudo